I got a fwt 70 in 7x57,I checked the twist in it and it is 1:8 or 1:8.5 which is the same twist as the old original mausers and in the early days of the 7x57 there was really only one bullet around,the ol 175 gr. RN,So therefore I would think that if your rifle is twisted the same it should do its best work with heavy bullets 160-175 grainers,I got a mannlicher 7x57 that is twisted 1:12 and the only bullets it shoots real well is the 100-120 gr.,Winchester 760 {H-414}I believe is the Highest recommended powder for use in the 7x57 case and even its offspring the 257 Roberts and the 6mm remington..........

broken bones broken heart stripped down an torn apart a lil rust but Im still runnin countin miles countin tears twisted roads and shiftin gears year after year its all or nothin Im not home and Im not lost just holdin on 2 what I got...God and Guns